Lightweight, compact, and high-performance 3T MR system for imaging the brain and extremities.

ABSTRACT:

Purpose

To build and evaluate a small-footprint, lightweight, high-performance 3T MRI scanner for advanced brain imaging with image quality that is equal to or better than conventional whole-body clinical 3T MRI scanners, while achieving substantial reductions in installation costs.

Methods

A conduction-cooled magnet was developed that uses less than 12 liters of liquid helium in a gas-charged sealed system, and standard NbTi wire, and weighs approximately 2000 kg. A 42-cm inner-diameter gradient coil with asymmetric transverse axes was developed to provide patient access for head and extremity exams, while minimizing magnet-gradient interactions that adversely affect image quality. The gradient coil was designed to achieve simultaneous operation of 80-mT/m peak gradient amp

SUBMITTER: Foo TKF 

PROVIDER: S-EPMC6107412 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature